Home / 117,753.78-162,496.74-66,771.16

Finding the Fourth Proportional to 117,753.78, 162,496.74 and 66,771.16

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Solution

The fourth proportional to 117,753.78, 162,496.74 and 66,771.16 is: 92,142.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,753.78 : 162,496.74 = 66,771.16 : x
  2. Step 2: Convert to fraction form
    117,753.78/162,496.74 = 66,771.16/x
  3. Step 3: Cross multiply
    117,753.78x = 162,496.74 × 66,771.16
  4. Step 4: Simplify right side
    117,753.78x = 10,850,096,396.42
  5. Step 5: Solve for x
    x = 10,850,096,396.42/117,753.78
  6. Step 6: Final answer
    x = 92,142.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.